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Welcome! Glad to have you.

Excellent and worthy endeavour. I've hoped for many years that someone would start a program like this at the middle/high school level.

No, unfortunately. You will need to desolder the relay and flip it around.

Okay. A pic might be a good idea at this point.

You can consider 4mv to be 0v.

When you say no clipping you mean when when you turn the soft and hard knobs they do nothing? Remember in the center you will get no clipping.

Oh man...how did I forget to include Kid A on my list?

FP Jr specs LT1054 for the charge pump. If you are using one of the ones you mentioned you will need to jumper pins 1 and 8 of the charge pump to put the internal oscillator out of the audio frequency.

These are 5 that I could listen to for the rest of my life and be happy (in no particular order)

Trail of Dead - Worlds Apart
John Coltrane - A Love Supreme
Frank Zappa - Joe's Garage
Simple Minds - New Golden Dream or Once Upon a Time
Radiophonic - I Could Have Been a Rocket Scientist

I'm cheating by including my own band but there's a good reason - listening to my own record makes me happy, it makes me remember the good times I had making it with my friends and it makes me proud that we finished it despite taking almost five years from start to finish. I'm picking that one over our other ones because it was my baby.


5 Terrible albums-
All the 80's metal I listened to in the actual 80's. Def Leppard, White Lion, LA Guns, Faster Pussycat, Guymanndude, and like a million more. They just don't hold up for me.

Lemme think about it a bit and get back to you tomorrow. Have some things I need to finish up today.

Thanks for the share, Jon!

2: 0
4: 0
5: 0
8: 9.6

Your voltages are not making sense. Are you sure you listed them in the correct order when you had IC2 installed?

IC2:
1: 5.7  2: 2.83  3: 5.7  4: 10.2 (seems high?)  5: 6.4  6: 0.9 (should be 0?)  7: 5.6  8: 2.86

Without IC2, you should be reading about 4.5v on pin2 and pin5, 0v on pin4, about 9v or so on pin8. The voltages listed with the IC installed are all wrong (for instance you said you have 10.2v on pin4 when it should be ground).

So, one of three things is happening here (or a combination thereof). Your original voltages with the IC installed were listed in the incorrect order, your actual IC is bad, or there are more extensive power problems on your board. What you need to do first is verify you have about 4.5v on pin7 of IC1B. This is the VB supply that should be feeding pin2 and 5 of IC2. If not, you need to look for problems with IC1, and that you have installed 100k resistors for both R53 and R54. Next I would try a different part in IC2 if you have one. A plain TL072 is fine. Test the voltages again and see what you get.

Pull out all the ICs. Measure the voltage on the bare socket for pins 2, 4, 5 and 8 of IC2. What do you have?

Cool, didn't know about that. I will have to look and see if I have a 5534.

Done and done!

Yup thanks. MBP will be a patron!